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PRACTICE：Physics Unit30: Nuclear Physics and Radioactivity
本Practice来源于https://webassign.org，是在线Practice的打印版，您也可以访问本平台网站(https://webassign.org/)直接在线完成(注册并登录账号后在首页左侧输入试卷号 329 即可在线作答)，，作答电子化后可随时回放，查看每题答案与详细解析，搜藏保存任意题目；教师使用本平台可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力。本试卷的直接作答链接 https://webassign.org/test329.html
 Author: physics    Total Marks: 71 mks  Marks Awarded: _____________

User Name: No Login  Start Time: 23年05月01日 14:16  Switch to Whole-Paper Mode

Mark Problem
1#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the atomic pa*ih0:et0lrs5 8pjt e hrticles has the least mass?

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Mark Problem
2#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The mass of an atom ic/bz3, 0ad eyfjac/1e ep jl49 g1jce6s

Correct Answer:    
Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The hydrogen nucleus consists of s8)d;gfq8ebo/d4eb bk gnto yp5; 56v

Correct Answer:    
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Mark Problem
4#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom's atomic number i z;t9o:.yh6hj;azo (ekk p9cu s determined by the number of

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Mark Problem
5#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom's mass number is determined by the numbe 3+k3m)x (b u8izq6jm;z 1vc ir5ytvvsr of

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Mark Problem
6#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If an atom's atomic number is given by Z, its atomic mass by A, and its neutron p+u9 7wwkmlo(xrrjb-.8 k1 rfnumber by N, wmkkf lj -w1p.97xowrr bu (+8rhich of the following is correct?

Correct Answer:    
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Mark Problem
7#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a neutron is emitted from an unstable nucleue1lwon(c;lc6ax/olz reg2 2vtq / x4.s, the atomic mass number of the nuctlne6wcgz2/4 vrl;. oe( / a2o1xqclx leus

Correct Answer:    
Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The number of protons in an atom icv y3u2m7o:d zs

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Mark Problem
9#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  There is a limit to the s igk -app1tbg18;q6bqize of a stable nucleus because of

Correct Answer:    
Mark Problem
10#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Atoms with the same atomic number but with diffg ;u(sxi80jqeerent numbers of neutrons are referred i0e q 8usgx(j;to as

Correct Answer:    
Mark Problem
11#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Isotopes of an element have nuctgt- e hcehj* )zo16l9lei with

Correct Answer:    
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Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic mass unit is defined ay:qt.: p-*o;uajfu kfs

Correct Answer:    
Mark Problem
13#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Compared to the masses oz2xl*t)/3kzce ure6f f its separate protons and neutrons, the total mass of a3ltcex2rz*fz 6ek) /u stable nucleus is always

Correct Answer:    
Mark Problem
14#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When nucleons join to forj5qt zn1la:zi 9 +:8wfq;icbe 9qi) ggnd0of7m a stable nucleus, energy is

Correct Answer:    
Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy of bah5m3v k5 -pys, b+lqysp ;1oa nucleus is contributed to

Correct Answer:    
Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per nuc.m.u;g+( ogs yj)qsnu*3 zseo8 i3vjzleon is

Correct Answer:    
Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy pei/hby jh n*;rb86iz (br nucleon

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Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the following statements concerning the jfkydzo 62jf +o.(hulwp .f 62nuclear force is false?

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Mark Problem
19#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Compared to the electrostatic force, the0hd1 k- cyk/y ax0n maky0+m ;mxi9/wd nuclear force between adjacent protons in a k x09yk/+wmmxac-yn ;dma0 0yk /i h1dnucleus is

Correct Answer:    
Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha rays can penetlq)*e2, erzaoh-zyx ; rate

Correct Answer:    
Mark Problem
21#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Beta rays can penetratejr t;d2 o (u;oyhmi-nrmjz/ 35 v+opgh22ze:g

Correct Answer:    
Mark Problem
22#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Gamma rays can penetr5ua6jxq gq5iog .v0q bq s7-s2ate

Correct Answer:    
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Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An a particle is also kno07r nzonwu2; vjkdsfe k;w216wn as

Correct Answer:    
Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A b- particle is also know)uip*hzv-ed ie:7bp(n as

Correct Answer:    
Mark Problem
25#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A $b+$ particle is also known as

Correct Answer:    
Mark Problem
26#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A gamma ray is also kxed 80z cra9 e*;zjm 5;j*yghwnown as

Correct Answer:    
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Mark Problem
27#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An alpha particle will be attram) ef gs0dxxt6s6n,5 bcted to a

Correct Answer:    
Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha particles have an atomi oenbx0nlxd*qy + l4.3c mass equal to

Correct Answer:    
Mark Problem
29#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When an alpha particle,f(ijpeh 24k0k gl eq1 is emitted from an unstable nucleus, the atomic mass number of the nucleusg( he01p 4leqkjikf2,

Correct Answer:    
Mark Problem
30#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When an alpha particle is emitted from an6rl1ayc(7o ,h pr/9iz6i r kly unstable nucleus, the atomic number of the nuclhr1 7,(ill6oikza6 pryyr c9/eus

Correct Answer:    
Mark Problem
31#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The expression (MX - MY - Ma) x 9315hh o(papp ;:m-6d9as8akx i j.5 represents

Correct Answer:    
Mark Problem
32#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In beta decay

Correct Answer:    
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Mark Problem
33#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  During $b+$ decay

Correct Answer:    
Mark Problem
34#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  During $b-$ decay

Correct Answer:    
Mark Problem
35#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a $b+$ particle is emitted from an unstable nucleus, the atomic number of the nucleus

Correct Answer:    
Mark Problem
36#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a $b-$ particle is emitted from an unstable nucleus, the atomic number of the nucleus

Correct Answer:    
Mark Problem
37#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a $b-$ particle is emitted from an unstable nucleus, the atomic mass number of the nucleus

Correct Answer:    
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Mark Problem
38#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the following is most nearl1/ )2z)z8fidx ceh;z( p ssrsay the same as a gamma ray?

Correct Answer:    
Mark Problem
39#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a gamma ray is emitte+:ihbp e/al6ld from an unstable nucleus,

Correct Answer:    
Mark Problem
40#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which particle has th0lhd)hh* s8 24-cqt b uxz;eboe most mass?

Correct Answer:    
Mark Problem
41#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In all three types of radioactive decay, what value is ys 3j8x qaedd.+ bg8,econserved in addition to electric chargd+8j3 x d.ay8qe, gebse, energy, and momentum?

Correct Answer:    
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Mark Problem
42#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What happens to the half-life of a radioactive substance as im3p* i nzmz*-ft decays?

Correct Answer:    
Mark Problem
43#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In radioactive dating, carbon-14 is often used. This nuc+uo :-fogwa9.tdthf snh//4c leus emits a single beta particle when it decays. When this happens, the resulting n4ff anu9 c/g-+hohsdt /: w.otucleus is

Correct Answer:    
Mark Problem
44#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The type of detector +dmo wp/g0i2q nbjdqu- *z+: othat uses a magnetic field to curve charged particles is a

Correct Answer:    
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Mark Problem
45#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The type of detector that uses liquid hydrogen is hk44rou3c1 fya

Correct Answer:    
Mark Problem
46#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Cloud chambers have been replaced by bubble chamzy3o14a 2wfr8tl:ou s bers because

Correct Answer:    
Mark Problem
47#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic mass number of 14 and atomibxm2e9 , zti9cc number 6 has how many protonibt c2x,ezm 99s?

Correct Answer:    
Mark Problem
48#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic mass number of 14 and atomic number gfic anzm 5:3d3wg2:z4d9yum 6 has how many neutrons? 4igfdd3m2znuzw3:95:ycm g a

Correct Answer:    
Mark Problem
49#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number f1da9;mh o5 yw e9y :+m9o*8(sl2acsvp useqstor calcium 39 are 20 and 39, respectively. How many nucleons aty1s9sa9uma2es*p coh + :w(lyvm9dsq5o;8e re in one atom?

Correct Answer:    
Mark Problem
50#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number for calciul8k.kab /)pw sm 39 are 20 and 39, respectively. How many electrons are in one at8/ ) kskwb.plaom?

Correct Answer:    
Mark Problem
51#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number for calcium 39 are 20 and 39, i4m52n (gff- sa5i gzimi -bd;respectively. How gifagidn2mm -5 fz-;si(i 4b5many protons are in one atom?

Correct Answer:    
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Mark Problem
52#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number for calcium 39 are 20 and 39, respectivel7r uqq f8(6j7(qidog xy. How many neutr78roq (fudq6(jiq 7gxons are in one atom?

Correct Answer:    
Mark Problem
53#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a 93 Nb nucleus, the number of protons, neutrons, and electrons is 41p1so )5.c uajba b0mb3

Correct Answer:    
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Mark Problem
54#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How many protons are there in thm.6ss 5 h-zicoe carbon-14 nucleus?

Correct Answer:    
Mark Problem
55#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If an element of atomic number 15 has an isotope of m; ahtc.xyz; t.ass number 32,

Correct Answer:    
Mark Problem
56#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Calculate the bindingna(z 8 f td0gp(o*xfj( energy of $^4He$.

Correct Answer:    
Mark Problem
57#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How much energy is required to :jz8it2pteacl)9)-p jsjyb;3t ) cp oremove one proton from $^9Be$?

Correct Answer:    
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Mark Problem
58#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomi: g (hv6ig87 iwp :afb-xckc1*e mvij,c number 88 goes through alpha decay. Its atomic number isx6mg cfwci:pjgih(i*1v8:7k v, a- eb now

Correct Answer:    
Mark Problem
59#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom has 98 protonmuwk 61*hkf diic bef-oo) 2w0e0 4.lgs and 249 nucleons. If it undergoes alpha decay, what are the number of protons and neutrons, respectively, in the daughter nucg-0k lwf6u* wio0h)dbik.ofe m1e4 2cleus?

Correct Answer:    
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Mark Problem
60#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A carbon-14 nucleus decays to a nitrogen-14 nucleus by beta decay. e: smps0zs diunt;f+ +d:l, t.How much energy (in MeV).+ttd:dp+:,nzf ;u 0ssis l em is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has a mass of 14.003074 u?

Correct Answer:    
Mark Problem
61#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic number 6 underggr u7lze /e+5p4,-otle,htzjka: trywu(h 0-oes $b-$ decay. Its atomic number is now

Correct Answer:    
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Mark Problem
62#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If the half-life of a materialz p8kr.mflb z(533vx. e:kpx (nvab: y is 45 years, how much will be left after 100 years?lvfx(p mb.85e(p x:y3z3 kvkn ab: .rz

Correct Answer:    
Mark Problem
63#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If $4.0 \times 10^{18} \; atoms$ decay with a half-life of 2.3 years, how many are remaining after 3.7 years?

Correct Answer:    
Mark Problem
64#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What is the probability that an atom will decay this ye 6,;t3q-hplg db1ean-3be yygar if its half-life is 247,16telgdah 3g-3yy-bb ;q en p years?

Correct Answer:    
Mark Problem
65#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A Thallium source was c8g3oq im4mb98hg3 u,zwmjr .tertified at $10 \; \mu Ci$ ten years ago. What is its activity now if the half-life is 3.7 years?

Correct Answer:    
Mark Problem
66#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A radioactive sample has a half-life of 10 min. What fraction of 8sdbq(qyy;s.:g0aecr r sp0 0the sample is left after csqg0 p be.0r:;syrsya(8 0qd 40 min?

Correct Answer:    
Mark Problem
67#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The half-life of radioactive iodilf2fyq uh+t j 7pnsr/0/ 36gms+grk4y ne-137 is 8.0 days. How many iodine nuclei are necessah3+/p4+ qmk7 s2jflu6g nyfr gts/r0yry to produce an activity of $1.0 \; \mu Ci$?

Correct Answer:    
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Mark Problem
68#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A radioactive substance with a half-llt 3n-tnig;d :; w go/:x3jixs-0k m+dpw9ik nife of 3.0 days has an initial activity of gpkd 3 xi0;d iw+ok -n3ln-j:/tmg; 9ts:nwxi$0.24 \; Ci$. What is its activity after 6.0 days?

Correct Answer:    
Mark Problem
69#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The radioactivity due to carbon-14 measured in a piece of a wooden caskepv) su o,5riz9t from an ancient burial site was found to produce 20 counts per minute from a give)sur v5, 9poizn sample, whereas the same amount of carbon from a piece of living wood produced 160 counts per minute. The half-life of carbon-14, a beta emitter, is 5730 years. Thus we would estimate the age of the artifact to be about

Correct Answer:    
Mark Problem
70#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How long would it ta.e8iap:;t87 h5; bbgymbfby1f ,mpoake $4.0 \times 10^{20} \; atoms$ to decay to $1.0 \times 10^{19} \; atoms$ if their half-life was 14.7 years?

Correct Answer:    
Mark Problem
71#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How long will it take a 6ym o)hkgt3 (x$4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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    Total:71 mks Pass:42.6 mks Duration:Unlimited
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